“We don’t know when Bryce will be back in the dev cycle”
+
“Bryce is not compatible with the last 3 OSX releases”
+
“You can run an old version of OSX in a partition just for Bryce”
+
“It works on Windows”
=
abandonware for Mac users.

Been using Bryce since Bryce 2. Was sad to come back to Daz to download my license on to a new mac and discover this debacle.
Sad really.
You can say you haven’t abandoned it all you want but as you have no idea when or if anything will change we’ll just assume it is abandoned until we hear something concrete.

The reviews of this in the App Store are people confirming it doesn’t work in Lion so I bet it just hasn’t been updated. There is also a note (attached below) in the app description that I do not believe was ever followed up on.

I’ve combed the forum and it doesn’t look like it will be updated for Yosemite.
I tried really hard to get it to work, except for the Windows/BootCamp ideas, I tried using WINE. No luck.
My brother told me the current version of Windows I would need to install is flakey.
I found contact information from some of the builders of the program and they are not interested. One is doing something similar but there doesn’t appear to be any import/export options. Actually he confirmed that it would not export OBJ files.
I experimented with many similar programs for various reasons I could not go with any of those.

My final solution was that my mom finally retired her old MAC to me for Christmas, and guess what? It has Snow Leopard on it so I was able to get Bryce to work. JOY! BTW I have a disk copy of Snow Leopard and tried to install it on a machine that has Yosemite- no good. I could not go backwards with the OS.

The other attachment is a note from my chat with Apple about which old MAC to buy. There are still companies selling these as refurbs.